Explore topic-wise InterviewSolutions in .

(a) Give one example where force is moving object.

(b) State one example where force stops a moving object.

What is echo???

Write the full name of IRS.

Any celestial body revolving around another celestial body is known as its _____.

A wave source produces $20$ crests and $20$ troughs in $0.2seconds$. Find the frequency of the wave.

Which of the following constellations can be seen in the night sky during the winter season?

A. Orion

B. Ursa Major

C. Leo Major

D. Cassiopeia

(a) A and B

(b) B and C

(c) A and D

(d) B and D

The heat required to change the state of a substance without any change in temperature is

On application of brakes, a cycle comes to a stop due to the friction between

Which inner planet's orbit lies closest to the orbit of one of the outer planets?

The atmospheric pressure is 105 N m-2 and density of water is 103 kg m-3. Find the depth of water at which pressure is double than atmospheric pressure.

When both ends of a tester are dipped in a potato, the region near positive end becomes green in color. This implies

All stars appear to revolve around which of the following ?

What must be the current rating of the fuse for the safe use of an electric heater rated 1188 W, 120 V?

When a boy doubles his speed, his kinetic energy becomes ___times the initial kinetic energy.

Ursa Major is a:

(a) star

(b) planet

(c) constellation

(d) satellite

____________ friction comes into play when we try to move an object at rest.

Do the following conduct electricity -

1.Glycerine

2.Hair Oil

Statement 2: Glowing brighter and dimmer depends on heating effect of current. More current produces more heating effect making the bulb glow brighter and vice-versa.

The condition for an electric charge to flow from one point to other is that the two points must have:

Give a relation between frequency and time period??

Why do planets not collide while revolving around the sun? [2 MARKS]

List three states in India where earthquakes are more likely to occur.

___ planets are there in our solar system.

Question 1 (d)
Fill in the blank:
An image which can be obtained on a screen is called a _________ image.

What is another name for night blindness?

On a clear day, the sky appears to be more blue towards the zenith (overhead) than it does toward the horizon. This occurs because:

If the mass of a body is 5 kg, its weight on the surface of the earth would be ___ newton (N). (Take, g = $9.8m/s^2$)

What are spherical mirrors? How many types of spherical mirrors are there? Explain their properties. [5 MARKS]

When two or more atomic nuclei in a nuclear fusion reaction combine to form atomic nuclei, a huge amount of energy is released due _____.

Choose the correct statements based on the properties of light.

If we allow current to pass through the given set up for some time, which of the following can be observed?

In which of the following examples chemical effects of electric current is desirable?

In which of the following cases are we likely to see the LED light up?

Please give a short note on sound about 200 to 250 words.

Question 06.2
Fill in the blanks in the following.
If you touch your ________ ear with your right hand in front of a plane mirror, it will be seen in the mirror that your right ear is touched with your _________.

Explain why snow shoes stop you from sinking into snow?

A battery of 9 v is connected in series with resistance of 0.2Ω, 0.3Ω, 5Ω, 0.5Ωand12Ω respectively. How much current would flow through the 12Ω resistor?

A force of $5N$ is applied on a body over a surface area of 5 $m^2$. Calculate the pressure applied on the surface.

The centre of gravity and the centre of buoyancy of a floating body in stable equilibrium

(i) are always same

(ii) are always along a same vertical line

A person sitting in a bus saw a bag sliding forward . This means that the bus is___________

When a charged rod is touched with the disc of a positively charged gold leaf electroscope, it is observed that the divergence of leaves decreases. What is the kind of charge on the rod?

In an experiment, a charged object attracts another object. What can we conclude from this?

____________is a device used by navigators to find the direction.